A possible plot is that Zelda herself is transported to RWBY's Vale. She has her magic and wisdom, but she needs to adapt to this new world. She meets Team RWBY and they initially don't trust her. But as she starts to show her knowledge of magic and combat, they realize she can be an asset. Together, they face off against a new threat that is endangering both the Zelda universe and RWBY's world.
Maybe the Triforce from Zelda gets scattered across the RWBY world. Ruby, Weiss, Blake, and Yang set out on a journey with Link to find the pieces. Along the way, they encounter various Zelda - like dungeons in RWBY locations. Link teaches the RWBY girls his combat skills, and they in turn show him how to use Dust, creating a really cool exchange of abilities.
One interesting plot could be that the heroes from The Legend of Zelda, like Link, find themselves in the world of RWBY. Link might have to team up with Ruby and her friends to fight a new common enemy that is a fusion of the dark forces from both universes. For example, Ganon's magic combines with Grimm energy to create a super - powerful and menacing foe.
Another interesting pairing could be Ganon and Salem. Both are powerful villains in their respective universes. They could form an alliance in the crossover fanfiction. Ganon's brute strength and dark magic combined with Salem's cunning and ability to manipulate would create a truly terrifying force. And the heroes from both worlds would have to work together to stop them.
One possible plot could be that Link finds himself in the Marvel universe. He teams up with Spider - Man to stop Ganondorf, who has made a deal with some villains in the Marvel world to gain more power. Link uses his sword skills and Spider - Man uses his webs and agility to fight off Ganondorf's minions and ultimately face the big bad himself.
One idea could be Link crossing over into a modern world. He'd be confused by the technology like cars and cell phones. Another could be Link teaming up with a character from another game, like Mario. They could combine their skills to defeat a common enemy.
Some fanfictions might explore the idea of the Triforce in the RWBY universe. Suppose the Triforce represents a powerful force that could either help or harm Remnant. The characters from both worlds would be drawn to it. The Zelda characters, with their knowledge of the Triforce, would have to work with RWBY's Huntsmen and Huntresses to protect it from falling into the wrong hands. There could also be a situation where Zelda's dungeons are reimagined in the RWBY world, and the RWBY teams have to go through them to achieve a certain goal.
One interesting plot twist could be that characters from Fairy Tail end up in the world of Legend of Zelda and they discover that their magic has a completely different effect. For example, Natsu's fire magic might interact with the magical elements in Zelda's world in a way that either helps or hinders their quest. Another could be that the Triforce has an unexpected reaction to the Fairy Tail mages' presence, perhaps granting them new powers or cursing them. A third plot twist might be that a major villain from Legend of Zelda teams up with a dark guild from Fairy Tail to take over both worlds.
It could be about Link ending up in Equestria and teaming up with Twilight Sparkle to fight a new evil that threatens both their worlds. Maybe Ganondorf has found a way to enter Equestria and is causing chaos, and Link uses his combat skills while Twilight uses her magic to drive him out.
One idea could be that Link, the hero from Legend of Zelda, somehow gets transported to the world of MLP. He might team up with Twilight Sparkle to fight against a common enemy that threatens both their worlds. Maybe Ganon has found a way to corrupt the magic in Equestria, and Link's combat skills along with Twilight's magic knowledge are needed to stop him.
One interesting storyline could be where Naruto characters are teleported to the world of Zelda. Naruto, with his determination and never - give - up attitude, might take on the role of a hero in the Zelda world. He could use his shadow clones to solve puzzles or fight off hordes of Bokoblins. Another could be Link getting the ability to use chakra, which would completely change the way he battles enemies. He could use ninjutsu techniques along with his swordsmanship, creating a unique combat style.
Well, one possible plot could be that Sailor Moon and her friends get transported to the world of Legend of Zelda. They could team up with Link to fight against a common enemy like Ganon who has somehow allied with the Dark Kingdom from Sailor Moon. Sailor Moon could use her powers to heal Link when he gets injured in battles, and Link could teach the Sailor Scouts some of his combat skills.
Maybe Zelda herself could be transported to the Avengers universe. With her wisdom and magic, she could assist the Avengers in different ways. She could use her magic to heal the wounded Avengers or help Tony Stark understand some ancient technology that has similarities to her own world's tech. She could also provide strategic advice based on her experience dealing with Ganon in her own realm.